Bug 353100

Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-28-generic i686
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
I was selecting elements of system settings app (accounts, displays, etc.) with single click ("open with single click"), going back and selecting another one.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Параметры системы (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb0496ac0 (LWP 2614))]

Thread 2 (Thread 0xaff07b40 (LWP 2615)):
#0  0xb77dcbe0 in __kernel_vsyscall ()
#1  0xb5d9b3db in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xb50543a8 in ?? () from /usr/lib/i386-linux-gnu/libxcb.so.1
#3  0xb5056394 in xcb_wait_for_event () from /usr/lib/i386-linux-gnu/libxcb.so.1
#4  0xb00b77d3 in QXcbEventReader::run (this=0x8546548) at qxcbconnection.cpp:1105
#5  0xb5ff67eb in QThreadPrivate::start (arg=0x8546548) at thread/qthread_unix.cpp:337
#6  0xb4c5f1aa in start_thread (arg=0xaff07b40) at pthread_create.c:333
#7  0xb5da5fde in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 1 (Thread 0xb0496ac0 (LWP 2614)):
[KCrash Handler]
#7  0xb53c0f16 in QQuickItemPrivate::addToDirtyList() () from /usr/lib/i386-linux-gnu/libQt5Quick.so.5
#8  0xb53c0fc1 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () from /usr/lib/i386-linux-gnu/libQt5Quick.so.5
#9  0xb53c181a in QQuickItem::update() () from /usr/lib/i386-linux-gnu/libQt5Quick.so.5
#10 0xb53cbbf9 in ?? () from /usr/lib/i386-linux-gnu/libQt5Quick.so.5
#11 0xb6252590 in QMetaCallEvent::placeMetaCall (this=0x8c55ab8, object=0x8b09798) at kernel/qobject.cpp:485
#12 0xb6255d03 in QObject::event (this=0x8b09798, e=0x8c55ab8) at kernel/qobject.cpp:1245
#13 0xb53ca5ca in QQuickItem::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQt5Quick.so.5
#14 0xb6ca382a in QApplicationPrivate::notify_helper (this=0x8526bf8, receiver=0x8b09798, e=0x8c55ab8) at kernel/qapplication.cpp:3720
#15 0xb6ca9081 in QApplication::notify (this=0xbfb243d0, receiver=0x8b09798, e=0x8c55ab8) at kernel/qapplication.cpp:3503
#16 0xb6221b8a in QCoreApplication::notifyInternal (this=0xbfb243d0, receiver=0x8b09798, event=0x8c55ab8) at kernel/qcoreapplication.cpp:935
#17 0xb6223e7c in sendEvent (event=0x8c55ab8, receiver=0x8b09798) at kernel/qcoreapplication.h:228
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8526558) at kernel/qcoreapplication.cpp:1552
#19 0xb6224597 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1410
#20 0xb627d5d3 in postEventSourceDispatch (s=0x8574600) at kernel/qeventdispatcher_glib.cpp:271
#21 0xb4b1ad64 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#22 0xb4b1b089 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0xb4b1b156 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0xb627d9e4 in QEventDispatcherGlib::processEvents (this=0x85736c8, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#25 0xb00e4611 in QPAEventDispatcherGlib::processEvents (this=0x85736c8, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:115
#26 0xb621ed93 in QEventLoop::processEvents (this=0xbfb24308, flags=...) at kernel/qeventloop.cpp:128
#27 0xb621f1fa in QEventLoop::exec (this=0xbfb24308, flags=...) at kernel/qeventloop.cpp:204
#28 0xb6227315 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#29 0xb66daa41 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#30 0xb6c9eda4 in QApplication::exec () at kernel/qapplication.cpp:2956
#31 0x08053f85 in main (argc=1, argv=0xbfb244a4) at ../../app/main.cpp:54

Reported using DrKonqi